Specifications - Emerson Rosemount MCL-220 Manual

Description and Specifications
2.2

Specifications

Table 2-1: General Specifications
Physical characteristics
Sample requirements
Sample conductivity
Process connection
Drain connection
Wetted parts
Response time to step change in monochloramine concen-
tration
Weight/shipping weight
(1) Noryl is a registered trademark of General Electric.
(2) Viton is a registered trademark of E.I. duPont de Nemours & Co.
(3) Zitex is a registered trademark of Performance Plastic Corp.
Table 2-2: Sensor Specifications
Physical characteristics
Range
pH range
Accuracy
Linearity
Electrolyte volume
Electrolyte life
6
Specifications
• Pressure: 3 to 65 psig (122 to 549 kPa abs). A check
valve in the inlet prevents the sensor flow cells from
going dry if sample flow is lost. The check valve opens
at 3 psig (122 kPa abs). If the check valve is removed,
minimum pressure is 1 psig (108 kPa abs).
• Temperature: 0 to 50 °C (32 to 122 °F)
• Minimum flow: 3 gal/hr (11 L/hr)
• Maximum flow: 80 gal/hr (303 L/hr); high flow causes
the overflow tube to back up.
> 10 µS/cm at 25 °C (77 °F)
1/4 in. OD tubing compression fitting (can be removed and
replaced with barbed fitting for soft tubing).
3/4 in. barbed fitting. Sample must drain to open atmos-
phere.
Overflow sampler: acrylic, nylon, polycarbonate, polyester,
silicone
Monochloramine sensor: Noryl
(3)
tex . PFTE gold mesh cathode (not normally wetted)
<60 sec to 95% of final reading for inlet sample flow of 17
gph (64 L/hr)
10 lb/13 lb (4.5 kg/6.0 kg) (rounded to the nearest 1 lb
[0.5 kg])
Specifications
0 to 6 ppm as Cl . For higher ranges, consult the factory.
2
Response is practically independent of pH between pH 7.0
and 10.0. Sensor current at pH 10.0 is within 5% of sensor
current at pH 7.0.
Accuracy depends on the accuracy of the chemical test
used to calibrate the sensor.
2% (typ.)
25 mL (approx.)
2 months (approx.)
(1) (2)
, Viton , silicone, and Zi-
Rosemount MCL